btrfs: Fix bugs in zlib workspace
authorLi Zefan <lizf@cn.fujitsu.com>
Mon, 25 Oct 2010 07:11:43 +0000 (15:11 +0800)
committerLi Zefan <lizf@cn.fujitsu.com>
Wed, 22 Dec 2010 15:15:41 +0000 (23:15 +0800)
- Fix a race that can result in alloc_workspace > cpus.
- Fix to check num_workspace after wakeup.

Signed-off-by: Li Zefan <lizf@cn.fujitsu.com>

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